Fruit-grating machine.



J. W. CHENEY. FRUIT GRATING MACHINE.

APPLICATION FILED JAN. 2, 1912. 1,021,969, Patented Apr. 2, 1912.

s SHEBTSSHEIBT 1.

J. W. CHENEY. FRUIT GRATING MACHINE.

APPLICATION FILED JAN. 2 1912 1,021,969a Patented Apr. 2, 1912.-

3 SHEETS-SHEET 2.

'J. W. CHENEY. FRUIT GRATING MACHINE.

APPLICATION FILED 'JAN. 2, 1912.

Patented Apr. 2, 1 912.

a SEEBTS-SHEET s.

Snow-tow I Gum;

- part of this s 'ecilication, and to the figures of citrus fruit.

V Fig. 7 is an end elevation of the other grat- 1.021.!Hill. FRUIT'G RAT] NG MACHINE.

Jens \V. (lancer, Los Angeles, Cal., assignor of one-half to Andrew J. Killeen, Los Angelcs, Cal. Filed Jan. 2,1912. Serial No. 669,070. To all whom it may concern:

lie it. known that 1' Joan Cnnssr, a citizen of the United tates, and resident of Los Angelcs. in the county of Los Angelcs and State of California, have invented certain new and useful Improvements in Frnit Grating Machines; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming and letters o reference marked thereon.

This invention relates to machines for removing by a gratin operation the epidermis I or outer skin of fruit, and more particularly The machine of the present invention embodies generally a rotary grater, the grating surfaces of which are kept advanced, by yielding pressure and means whereby the fruit may be grasped between longitudinally movable carrying members. fed between the grating surfaces and discharged therefrom automatically, the. attendant simply having the duty imposed upon him of presenting the fruit to the feeding mechanism, and where desired, of removing by a gratin operation those portions of the fruit wbici were protected by the holding portions of the e les eelleeiemt r The invention consists in certain novel details of construction and combinations and arrangements of parts, all as will be nowfl described and pointed out particularly in; the a ipendcd claims. llelerring to the accompanying drawings.---Figurc 1 is a top plan view; Fig. a side elevation; and Fig. 3 a sectional elevatien of a machine embodying the present imprm'emcnts; Fig. 4 is a view corres mnd-. ing to Fig. 2, but having some of the mrts in section in a vertical longitudinal pane; Fig. I) is an end elevation of one. of the grater heads; Fig. ll is a section on an enlarged scale through one of the fruit holding members of the feeding mechanism;

ing head; Fig. 8 is a section taken longitudinally of the head shown in Fig. 7; and

Figs. 9 and 10 are details of one of the! grallers and of the fruit support, respective v. i

Like letters of reference in the severali figures indicate the same parts. 3

While the machine of the )lOSClil. invea-l tion may embody a frame 0 any suitable design or construction it is illustrated as having a base plate It on which suitable standards ll are erected and at their upper ends form hearings for a rotary shaft (1.. The shaft. carries at one cm] a grater head to be presently described, and at 11.96am;

end a pulley c to which power may be ap-, plied from any suitable source. The shaft, G is a hollow or tubular shaft adapted for? the passage of a rod D movable longitudi-i nally, but is held against rotation by any; suitable means, such. for instance, as bvi having its end squared and mounted to work, ina suitable bearing in a standard 7). The rod D is provided at its forward end with a; conical or llarin holder (1 in which one end; of the. fruit is iicld during its presentation; to the grating head. i

Arranged in opposition to the holder (i1 is a second holder 0 also mounted on the end} of a rod lettered E in the drawings. and"- adapted to be rcciprocatcd longitudinally to v bring the holders (l and (1 toward each other and to reciprocate them in unison during the grating operation. The rod E is conven-I ienlly adjustably mounted on a carriage F sliding in dove-tailed ways G in suitable standards G and said carriage is reciprocatcd intermittently, preferably by means of a mutilated gear and rack drive. the. movement of wbirlris secured through suitable driving connections with the sba ft 0. The carriage is preferably provided on its under side with a rack bar f with which the teeth of a mutilated ear wheel or pinion ii are'. adapted to most, and said pinion H is ro-; tated through bevel gears H, shaft H and? j spring. jot wluci is xulpistably connected with the l spur gears H on the shafts O and H. re-i spectivel v. Reverse movement. is imparted i to the carriage by an adjustable tension n'cferably a coil spring I, one end standard K-and the other end with the rear cud oflhc carriage. The rod D carrying the holder ll is held advanced by a coil compres sion spring I preferably surrounding the rod 3 and hearing at one end against the standard 1 I) and at the other end against an adjustable l collar Z on the rod D.

Willi this construction, when the shaft (3-; is rotated the carriage will be rcciprocatcd l intermittently and consequently the two i holders c and (I will first approach each other. and. if a fruit be placed between them. their relative movement will be arrested i when the fruit is clamped, but the two heads. together with the fruit, will be advanced, compressing the spring I and forcing the fruit to enter the rating head within which 2" suitable graters a 'c arranged, for the pur i pose of removing the outer portion of the fruit between the holders. in the preferred construction, the grater head to which the fruit is presented by the clam Ill1 and feeding mechanism, consists .5 of a to] ow head M, suitably secured on the end of the shaft C, and preferably of greater diameter at its inner than at its outer end, whereby gratings will tend to. travel toward the inner end of the head and i may be discharged through openings m. at

; a point away from the grating surfaces and outer end of the head, so as to be out of the way of the attendant, within the head M, v and preferably in proximity to its outer open end. It is provided with yielding grating surfaces between which the fruit is forced by the feeding and clamping mechanism. The grating surfaces, which may be of any suitable formation, for removing the outer portion of the fruit are indicated in Fi 5 bythe letter N, and they are referab y pivotally mounted in carriages i\', said carriages in turn being mounted to slide transversely of the axis of the head on rods n mounted in and extending in parallelism transversely of the head, on'opposite sides of the axis. Springs 0 serve to advance the carriages and graters toward each other, while adjustable collars O serve to limit their advance movement and permit of a iroper adjustment for the particular fruit being handled. The graters may be readily removed from the carriages by the usual expedient of separating one or both of their bearings, and the axis of each grater is preferably arranged with relation to the grating surface, as indicated at 0 in Fig. 9, whereby the raters may assume the angles indicated 1 by the dotted lines in said last mentioned l figure, to ermit of the removal of a larger l portion of the surface of round or oval i shaped fruit, as well as to insure a proper entry and discharge of the fruit when advanced and retracted by the feeding meeha-f nism. The rods 11 on which the grater earriages N are mounted are usually su ported in hearings or bosses n, and are held inv position by nuts 11..

Arranged parallel with the shaft C is a second shaft 0 adapted to be rotated by a. spur gear 0', meshing with the gear wheet ll. Said shaft carries at its end a second. grater head P which substantially conforms in contour and construction to the grater head M, but may, if desired, be of some-i whatsmaller size. No fruit feeding mocha-g nism is shown in connection with this second; grater head, but it is so designed that the attendant may present the fruit thereto manually for the removal of such portions; thereof as would be protected by the holders (1' and 0 during the irescntation of the fruit to the graters of tie main head i\I. The secondary grater head I is preferably )IO- .vided with concave graters p, each of w iich may substantially conform to a quarter of a sphere. and each pivotally mounted on an inwardly projecting and adjustable support mounted in the wall of the head I. The concave graters p are yieldingly supported in normal position by springs 7), Fig. 8,Z and in operation it will be understood that; the fruit is presented against the concave, grating faces manually and preferably: while being held in the hand of the attendant.

The inner faces of the holders (1 and a "IQ-hi8 of the fruit. rested 5 reaches its normal are roughened or provided with projections; which will hold the fruit against rotation} during the grating operation, and there is; preferably arranged a vertically adjustable; support Q upon which the fruit may be? placed by the attendant in position to be; clamped between the holders. Itwill be understood, of course, that this support Q: is properly formed to retain the fruit in; position and to permit of the holder 0 pass-j mg through it, for which purpose it may; be concave in cross section, as indicated ini Fig. 10.

In operation, the fruit placed on the sup-j; port Q is clamped between the holders ll} and c. and while so clamped, is advanced to and between the gratei's N. the rapidity of the feeding movement and rotation of the grater head being so proportioned as to remove the desired thickness of the outer 1 portion of the fruit between the holders during the forward and backward move-- The holder (1 is ar-; it.

in its reverse movementwhen position. by an ad ustable stop, such as he nut R on the outer end of t its movement, thereby leaving the fruit-in position where it can be grasped by the attendant and presented by hand to the gratcrs of the serondarv head I, so as to remove the outer portion of the ends of the fruit. cans for removing the gratings from the teeth of the grater may be provided in the form of a brush S, secured to the holder I] or rod 1) in position to move through the graters in advance of the fruit Qitsell'. during its forward movement and to lfollow the. fruit during its backward movement.

From thefot'egoing it will be seen that Ethe fruit is advanced to the graters with a :steady uniform movement. but is returned tuickly to its initial position, inasmuch as the forward movement is secured by the ,gcaring heretofore described, and the rejverse movement by a spring which becomes jetleetive the instant the teeth of the mutiilated gear move out of engagement with lthe rack teeth. During the period of rest following the reverse movement of the feedlmg mechanism the attendant has ample itlltlt to place a new fruit in position for being clamped and fed and he may utilize *the tcetling interval as the time iii which to presentthe ends of the fruit to the graters lot the supplemental hpnd.

' Having thus described my invention, .what I claim as new and desire to secure by iLctters latent of the United States. is:

l 1. In a grating machine, the combination 1 ;\\llll a rotary head having oppositely disjposed graters yieldingly mounted therein,

iof oppositely disposed fruit holding and ifeeding devices movable toward and from leach other to clamp the fruit and movable {Hi unison to presentthe fruit to'the gratei'a rod, while the holder 0 continues -in the head, with mechanism for rotating the head and for reciprocating the holders :and feeders.

2. In a grating machine, the combinat on with the cylindrical grating head having mternal yielding graters therein, and means for rotating said head, of fruit clamping and feeding mechanism embodying holders movable toward and from each other to clamp the fruit amt movable in unison to present the fruit to the graters, driving mechanism for advancing the holders to.

present. the fruit to the graters, and means for returning the holders to normal position. it. Ina t'rtut grating machine, the combination with the grater head having internal graters yieldiugly mounted therein, a spring pressed fruit holder movable axially within the head, a cot'iperating fruit holder movable toward and from tho first mentioned fruit holder, and drivin mechanism for reciprocating the last mentioned holder, whereby the fruit will be elampedhetwcen l the holders and advanced into the grater head, substantially as described.

3 l ingly mounted within said head, a spring pressed rod extendm axially througi the lttltl, and a fruit ho der mounted on said clamped.

with the water head having 101"], a cooperating oppositely disposed means for reciprocating said the holders and advanced into the grater holder advancing spring.

fruit holder, a spring for retracting-said -l. In a grating machine, the combination \\'ltll the rotary grater head, graters yieldrod. of an oppositely disposed reciproca- I tory fruit holder, and means for reeiprocat- Q 5 ing said last mentioned holder, whereby the 1 fruit will be clamped between the holder- .and advanced into the grater head while so 1 holder, a reeiproeatorv carriage on which the last mentioned holder is mounted, and

carriage whereby the fruit may be grasped between.

head in opposition to the tension of the i In a fruit grating machine, the eombinat|on with the rotary grater head, yielding- 5. In a grating machine,- the combination? internal graters yielt ingly mounted therein, aspring pressed holder movable axially into the T 'tttsrmeiiaaaea fruit holder, and gearing for advancing the same, whereby a fruit may be clamped between the holders and adrancet into the grater head.

8. In a fruit grating machine, the combination with the rotary grater head. of? greater diameter at its inner than at its outer end and having discharge apertures; at its inner end. graters mounted within said head, and fruit clamping and feeding mechanism movable into and out of the head for t presenting the fruit to the gruters. a

9. In a fruit grating machine, the. comlunation with the rotary grater headof greater diameter at its inner than at its outer end, outwardlv movable graters. yieldingly mounted within the head, and fruit clamping and feeding holders movable longitudinally of the axis of said head for presenting the fruit to said graters. 7

I In a grating machine, the combination with the rotary grater head, graters yieldingly mounted within said head and 1 spring pressed holder mounted to more axially of the. head. of a second holder arranged in opposition to said first mentioned'holder, a reeiprmatory carria e for said second holder. intermittent driving mechanism intermediate the carriage and grater head, and means for supporting a trait in position to he clamped between the holders.

l 11. A grating machine embodying a hol- -'low rotary grater head of greater diameter lat its inner than at its outer end, \vhereby gratings are conducted by gravity toward gits inner end, and graters mounted within land near the outer end of the head.

' 12. A fruit grating machine embodying a rotary head, of greater diameter at its inner than at its outer end and with apertures at its inner end for the discharge of ratings, and graters movably mounted within the grater head near its outer end, and ,means for yieldingly holding said graters 'advaneed toward each other.

'f 13. In a fruit grating machine, the combination with the frame, rotary shat't jourualed in said frame and grater head mounted on said shaft and embodying internal graters, of arod movable longit-mlinally in the shaft and head, a fruit holder mounted on said rod, a reeiproeatonv carriage, a secoud fruit-holder mounted on said carriage in op osition to the first. mentioned fruit holder. driving mechanism for advancing the fruit holders in one direction, and lsprings for moving said holders in the opposite direction.

14. In a grating machine, the combination with hollow grating heads mounted in proximity to each other, driving mechanism t for rotating said head and graters yieldlnglv supported within each of the heads, of a fruit clamping and feeding mechanism arranged in alinement with one of said heads for presenting the. fruit to the graters there- .;in, and a fruit support below the level of saidfrait clamping-and feeding mechanism; 15. In a fruit grating machine, the c0mbi-'1 nation with the. hollow rotary grater head, of 1 less diameter at its outer than at its inner! end, whereby gratings 'will be fed by g'ravl ity toward the inner end, graters yieidingly 5 jmmmted within the outer end of the grater ;head, and means for adjusting said graters toward and from each other to acenmmo-s date fruits of different 'size, of fruit clam i ing and feed'm mechanism movable axialPy i :into and out o the grater head. i

A. E. mom, v H. II, HAams. I

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